Fix a CMake error on Fedora (and maybe Archlinux). (refs #31)
Fix rust-servo branch’s build error.
Fix rust-servo branch’s build error (rest).
Rebase merge rust-servo (will be backed out immediately after).
Revert "Rebase merge rust-servo (will be backed out immediately after)."

This reverts commit 932620d15deab038af9fe38961ccb89d374fcf84, reversing
changes made to cf53530aae441a76c0ed95f12feeaa46c4475fd7.